A heat-insulating planting box for planting plants and a method for installing the same

Abstract

The application relates to the field of plant heat preservation, and particularly relates to a heat-insulation and heat-preservation planting box for planting plants, which comprises a box body, a bottom heat-preservation layer is laid at the bottom of the box body, a double-layer heat-preservation structure is installed on the side wall of the box body, the double-layer heat-preservation structure comprises a top horizontal plate and two mounting plates, the top horizontal plate is arranged on the top surface of the box body, the two mounting plates are parallel to each other and are fixed with the top horizontal plate, the two mounting plates are arranged on the inner side and the outer side of the box body respectively, a heat-preservation plate body is arranged in the mounting plate on the outer side of the box body and in the mounting plate on the inner side of the box body and is attached to the inner surface of the box body, and the heat-preservation plate body has the advantages of low cost and no influence on the beautification of green plants.

Description

Technical Field

[0001] This application relates to the field of plant insulation, and in particular to an insulated planting box for planting plants and its installation method. Background Technology

[0002] In some areas where nights are cold, or in regions with long winters and low temperatures, potted plants used to decorate cities and streets are prone to freezing to death. In order to ensure the survival rate of plants, it is necessary to study the heat insulation and heat preservation of potted plants.

[0003] In existing technologies, there are generally two methods for heat insulation of potted plants. One method is to directly wrap the outer surface of the planting box with weeds, cloth strips and other miscellaneous materials for heat insulation. This method is simple and crude, and seriously affects the appearance of the city, which goes against the original intention of green plants to beautify the city. The other method is to process the planting box into a structure with multiple insulation layers. This method has a better heat insulation effect, but the processing technology of the planting box is complicated and the cost is high, which is not suitable for most situations.

[0004] Therefore, it is urgent to research a low-cost, heat-insulating planting box that does not affect the aesthetic effect of green plants. Summary of the Invention

[0005] This application provides a heat-insulating planting box for planting plants and its installation method, which has the effects of low cost and no impact on the beautification of green plants.

[0006] On the one hand, this application provides a heat-insulating planting box for planting plants, and the above-mentioned technical objective is achieved through the following technical solution:

[0007] A heat-insulating planting box for planting plants includes a box body, with a bottom insulation layer laid at the bottom of the box body. The side walls of the box body are equipped with a double-layer insulation structure, which includes a top horizontal plate and two mounting plates. The top horizontal plate is mounted on the top surface of the box body. The two mounting plates are parallel to each other and fixed to the top horizontal plate. The two mounting plates are respectively located on the inner and outer sides of the box body. Insulation panels that are in contact with the inner surface of the box body are installed in the mounting plates located on the outer side and the mounting plates located on the inner side of the box body.

[0008] By adopting the above solution, the container can be a simple, ordinary structure. After obtaining the container, first lay the bottom insulation layer at the bottom of the container, then install the double-layer insulation structure, ensuring the two insulation panels are fitted against the inner and outer walls of the container. Then slide it downwards until the top horizontal panel is flush with the top of the container. At this point, the bottom and side walls of the container are enhanced in insulation. The overall installation is simple, and the double-layer insulation structure effectively restricts the bottom insulation layer. In summary, the planting box reduces insulation costs without compromising the aesthetic appeal of the greenery.

[0009] Optionally, a bottom insulation box is installed at the bottom of the box body, the insulation box covers the bottom of the box body, and the upper surface of the insulation box is in contact with the bottom of the outer mounting plate. The insulation box and the outer mounting plate are connected as one unit by a connector.

[0010] By adopting the above solution, a bottom insulation box is installed at the bottom of the enclosure, and the bottom insulation box is connected to the outer mounting plate by connectors. Therefore, the bottom insulation and side wall insulation of the enclosure can form a whole, thereby improving the insulation performance of the enclosure and the stability of each insulation structure after installation.

[0011] Optionally, the connector includes a connector body with a vertical receiving groove inside. A vertical sliding hole communicating with the receiving groove is opened on the side surface of the connector body facing the box. The cross-sectional dimension of the vertical sliding hole is smaller than the cross-sectional dimension of the receiving groove. A stationary insert is fixedly installed at the bottom position of the connector body facing the box. A slider is slidably installed in the receiving groove along the vertical direction. A movable insert is fixedly installed on the surface of the slider. The movable insert slides with the vertical sliding hole. A return spring is provided in the receiving groove with one end fixed to the bottom of the receiving groove and the other end fixed to the slider. The outer mounting plate and the surface of the bottom insulation box are both provided with insertion holes for the movable insert and the stationary insert.

[0012] By adopting the above solution, in order to connect the bottom insulation box and the mounting plate on the outside of the box into a whole, after the bottom insulation box is installed, pull the movable insert bar so that the movable insert bar and the stationary insert bar are aligned with the corresponding insertion holes and inserted. After insertion, the movable insert bar is subjected to the elastic force of the return spring, so that the bottom insulation box and the mounting plate are subjected to a mutual squeezing force, thereby ensuring the stability after installation and indirectly improving the overall insulation performance of the box.

[0013] Optionally, both mounting plates are fixedly connected to a horizontal extension plate at their bottoms, and a vertical lower baffle is fixed to one end of each extension plate that is close to the other. An upper baffle is fixedly installed on the lower surface of the top horizontal plate, which is vertically opposite to the lower baffle. The insulation board includes a first insulation board and a second insulation board. The first insulation board is inserted between the mounting plate and the upper and lower baffles. The second insulation board is located on the side of the upper and lower baffles away from the mounting plate. The first insulation board and the second insulation board are connected and fixed by a connecting plate, and the second insulation board is in contact with the surface of the box.

[0014] By adopting the above scheme, after installing the first insulation board and the second insulation board, the upper baffle and the lower baffle can clamp the first insulation board tightly, and the connecting plate can be supported by the lower baffle and positioned by the upper baffle, making the connection between the insulation board and the mounting plate more solid, and further improving the insulation performance of the box after installation.

[0015] Optionally, a vertical magnetic metal rod is fixedly installed at the perimeter of the upper surface of the bottom insulation layer, and a mating hole for inserting the magnetic metal rod is opened at the bottom of the extension plate, with a ring magnet installed on the inner wall of the mating hole.

[0016] By adopting the above solution, after the insulation board on the side wall of the box is installed, the corresponding magnetic metal rod is inserted into the mating hole and attracted to the ring magnet in the mating hole. At this time, the insulation board on the side wall of the box can be connected to the bottom insulation box as a whole, and can also be connected to the insulation layer at the bottom of the box. Moreover, the insulation layer is subjected to the pressure of the extension plate, which ensures the stability of the insulation layer. The insulation layer can be closely attached to the bottom surface of the box, thereby greatly improving the insulation performance.

[0017] Optionally, the surface of the top horizontal plate has a vertical through groove extending to the upper baffle on the side near the inside of the box. An adjusting rod is installed in the through groove, and a horizontal pressure spring is installed in the through groove. A pop-out hole is opened on the side wall of the through groove facing the inner wall of the box. A locking block is fixedly connected to the end of the pressure spring. The locking block slides with the pop-out hole. Locking holes are opened at corresponding positions on the inner side wall of the box and the first insulation plate. When the top mounting plate contacts the top of the box, the locking hole and the pop-out hole are aligned.

[0018] By adopting the above scheme, after the insulation board is installed, the pop-out hole of the first mounting plate and the locking hole on the inner wall of the box are aligned. At this time, the locking block passes through the pop-out hole and is inserted into the locking hole under the elastic force of the pressure spring, so that the mounting plate and the first insulation board are engaged with the inner wall of the box. This allows the entire insulation board to be confined at the bottom and top, further improving the installation stability of the insulation board.

[0019] Optionally, the first insulation board is an acrylic insulation board.

[0020] Optionally, the second insulation board is an insulation board made of perlite.

[0021] On the other hand, please provide an installation method for an insulated planting box for planting plants, including the following steps:

[0022] S1. Place the bottom insulation box around the bottom of the outer box;

[0023] S2. Lay the bottom insulation layer at the bottom of the box;

[0024] S3. Insert the first insulation board horizontally into the gap formed by the mounting plate, the upper baffle, and the lower baffle until the first insulation board is fully inserted. At this time, the connecting plate is located between the upper baffle and the lower baffle, so that the insulation board is installed and fixed.

[0025] S4. Slide the double-layer insulation structure onto the side wall of the box until the bottom of the mounting plate inside the box contacts the bottom insulation layer and the mounting plate outside the box contacts the top surface of the bottom insulation box, and the locking block pops into the locking hole to lock it.

[0026] S5. Insert the movable and stationary inserts of the connector into the corresponding holes to integrate the bottom insulation box with the double-layer insulation structure.

[0027] In summary, this application has the following technical effects:

[0028] 1. By setting an insulation layer at the bottom of the box and installing inner and outer insulation boards on the side walls of the box, the box can be insulated in all directions. The installation process is simple and does not affect the greening effect after installation.

[0029] 2. By setting connectors, the bottom insulation box and the insulation board on the side of the box are connected as a whole, which improves the stability of the insulation structure installation;

[0030] 3. The insulation board located inside the box is connected to the box body as a whole by locking blocks. With the help of connectors, the entire insulation structure becomes a multi-position fixed whole, which further improves the installation stability of the insulation structure. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the planting box body in an embodiment of this application;

[0032] Figure 2 This is a structural diagram designed to emphasize the double-layer insulation structure;

[0033] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle;

[0034] Figure 4 This is a top view of the connector;

[0035] Figure 5 yes Figure 4 Sectional view along the BB direction.

[0036] In the diagram: 1. Box body; 2. Bottom insulation layer; 21. Magnetic metal rod; 3. Bottom insulation box; 4. Double-layer insulation structure; 41. Top horizontal plate; 411. Upper baffle; 412. Through groove; 413. Adjusting rod; 414. Pressure spring; 415. Pop-out hole; 416. Locking block; 42. Mounting plate; 421. Extension plate; 4211. Mating hole; 4212. Ring magnet; 422. Lower baffle; 43. Insulation board body; 431. First insulation board; 432. Second insulation board; 433. Connecting plate; 5. Connector; 51. Connector body; 511. Receiving groove; 512. Slider; 513. Vertical sliding hole; 514. Return spring; 52. Fixed insert; 53. Movable insert; 6. Insertion hole; 7. Locking hole. Detailed Implementation

[0037] The present application will be further described in detail below with reference to the accompanying drawings.

[0038] Reference Figure 1 This application provides a heat-insulating planting box for planting plants, including a box body 1, a bottom insulation layer 2 laid on the inner bottom of the box body 1, a bottom insulation box 3 fitted on the outer bottom of the box body 1, and a double-layer insulation structure 4 installed on the side wall of the box body 1. The entire box body 1 can be fully insulated, and the installation process is simple and does not affect the overall aesthetics after installation.

[0039] The bottom insulation layer 2 is made of polyurethane insulation material and is laid directly on the bottom of the box 1. Alternatively, glue can be applied to the bottom of the box 1 to fix the bottom insulation layer 2 to the bottom of the box 1 by adhesive bonding.

[0040] The bottom insulation box 3 is made of a relatively hard material, such as a regular wooden board structure or a concrete pouring structure. Its main function is to protect the bottom of the box 1 and also provide a certain degree of insulation. It can also use perlite insulation board or other structures to enhance the insulation effect to a certain extent. The inner wall of the bottom insulation box 3 is directly attached to the outer wall of the box 1, and the maximum height of the bottom insulation box 3 is consistent with the internal depth of the box 1.

[0041] like Figure 2 As shown, each side wall of the enclosure 1 is provided with a double-layer insulation structure 4 to provide all-round insulation for the enclosure 1. Specifically, the double-layer insulation structure 4 includes a top horizontal plate 41, two mounting plates 42, and two insulation panels 43; the two mounting plates 42 are parallel to each other and fixedly installed at both ends of the top horizontal plate 41, and the top horizontal plate 41 and the mounting plates 42 are perpendicular to each other. During installation, the top horizontal plate 41 is slid downwards facing the side wall of the enclosure 1, so that the two mounting plates 42 are located on the inner and outer sides of the enclosure 1, respectively.

[0042] Both mounting plates 42 have an extension plate 421 fixedly installed at their bottom, parallel to the top horizontal plate 41. The two extension plates 421 extend towards each other. A lower baffle 422 is fixedly installed at the end of the extension plate 421 away from the mounting plate 42. The lower baffle 422 is perpendicular to the extension plate 421. An upper baffle 411 is fixedly installed on the lower surface of the top horizontal plate 41, which is vertically opposite to the lower baffle 422. This creates an installation gap between the mounting plate 42 and the upper and lower baffles 422 for installing the insulation panel 43.

[0043] The insulation board body 43 includes a first insulation board 431, a second insulation board 432, and a connecting plate 433 located between the first insulation board 431 and the second insulation board 432. The first insulation board 431 and the second insulation board 432 are parallel to each other, and the connecting plate 433 is disposed between the first insulation board 431 and the second insulation board 432. Both ends of the connecting plate 433 are fixed to the first insulation board 431 and the second insulation board 432 respectively. The specific fixing method can be adhesive fixing. During installation, the first insulation board 431 is aligned with the gap between the mounting plate 42 and the upper and lower baffles 422 and pushed horizontally in, so that the first insulation board 431 can fill the gap. At the same time, the upper and lower surfaces of the connecting plate 433 will fill the gap between the upper baffle 411 and the lower baffle 422, and the surface of the second insulation board 432 facing the first insulation board 431 is also in contact with the surface of the upper and lower baffles 422. At this time, a stable and reliable assembly fixation is formed between the insulation board body 43 and the mounting plate 42. During installation, as the top horizontal plate 41 moves downward, the two second insulation boards 432 can always be in contact with the inner and outer walls of the box 1. When the top horizontal plate 41 is completely in contact with the upper surface of the box 1, the bottom of the extension plate 421 located on the outside of the box 1 is in contact with the top surface of the bottom insulation box 3, and the bottom of the extension plate 421 located on the inside of the box 1 is in contact with the surface of the bottom insulation layer 2, thereby realizing the installation of the entire double-layer insulation structure 4.

[0044] Both the first insulation board 431 and the second insulation board 432 are made of boards with insulation material. In this embodiment, the first insulation board 431 is made of acrylic material, the second insulation board 432 is made of perlite insulation board material, and the connecting plate 433 can be any material with a certain hardness. In this embodiment, the connecting plate 433 is also made of acrylic material, which can also improve the insulation capacity of the side wall of the box 1 to a certain extent.

[0045] Combination Figure 1 , Figure 4 and Figure 5As shown, the mounting plate 42 located outside the box 1 is fixed to the bottom insulation box 3 by a connector 5. Specifically, the connector 5 includes a vertically arranged connector 51, and a horizontal stationary insert 52 is fixedly arranged at the bottom of the connector 51. The stationary insert 52 and the connector 51 are bonded together or integrally formed. A vertical receiving groove 511 is opened at the top of the connector 51. The receiving groove 511 does not completely penetrate the bottom of the connector 51. A return spring 514 is fixedly arranged at the bottom of the receiving groove 511. A slider 512 is fixedly connected to the top of 514. The slider 512 slides vertically within the receiving groove 511 and fits against the inner wall of the receiving groove 511. A vertical sliding hole 513 is provided on the surface of the connecting body 51. The vertical sliding hole 513 communicates with the receiving groove 511, and the cross-sectional dimension of the vertical sliding hole 513 is smaller than that of the receiving groove 511. A movable insert 53 with a square cross-section is provided in the vertical sliding hole 513. One end of the movable insert 53 is interactively connected to the slider 512.

[0046] Both the surface of the bottom insulation box 3 and the surface of the mounting plate 42 on the outside of the box body 1 are provided with an insertion hole 6. The projections of the two insertion holes 6 in the vertical direction coincide. The stationary insertion bar 52 and the movable insertion bar 53 are inserted into the corresponding insertion holes 6, and after insertion, the return spring 514 is in a stretched state. At this time, the bottom insulation box 3 and the double-layer insulation structure 4 can form an assembly relationship, which can improve the installation stability of the double-layer insulation structure 4 and prevent the bottom insulation box 3 from falling off to a certain extent.

[0047] Combination Figure 2 and Figure 3 Multiple vertical magnetic metal rods 21, such as iron metal rods, are fixedly installed at the edge of the upper surface of the bottom insulation layer 2. The magnetic metal rods 21 are bonded to the bottom insulation layer 2 with strong adhesive. The lower surface of the extension plate 421 located inside the box 1 has a mating hole 4211. A ring magnet 4212 is interference-fitted into the inner wall of the mating hole 4211. After the double-layer insulation structure 4 is installed, the magnetic metal rods 21 are inserted into the mating hole 4211 and attracted to the ring magnet 4212. This strengthens the part of the double-layer insulation structure 4 inside the box 1 to a certain extent. The double-layer insulation structure 4 and the bottom insulation layer 2 can form a connected and coordinated whole, indirectly improving the insulation performance of the box 1.

[0048] A vertical through slot 412 is formed in the top horizontal plate 41 at the position of the upper baffle 411, and the through slot 412 extends vertically into the interior of the upper baffle 411. An adjusting rod 413 is inserted into the through slot 412. The adjusting rod 413 can move horizontally within the through slot 412, and the direction of movement is towards or away from the outer side of the housing 1. That is, the cross-sectional dimension of the through slot 412 in the horizontal direction is larger than the dimension of the adjusting rod 413 in the corresponding direction to ensure that the adjusting rod 413 has sufficient room to move. A pressure spring 414 is provided between the side surface of the adjusting rod 413 facing the center of the housing 1 and the inner wall of the through slot 412. The pressure spring 414 is fixedly installed with the adjusting rod 413 and the inner wall of the through slot 412. To ensure the elasticity, multiple pressure springs 414 can also be provided. A horizontal locking block 416 is fixedly installed on the side surface of the adjusting rod 413 away from the pressure spring 414. The inner wall of the through groove 412 has an ejection hole 415 for the locking block 416 to pop out at the position opposite to the locking block 416. After the double-layer insulation structure 4 is installed, the inner wall of the box 1 and the first insulation plate 431 have interconnected locking holes 7 at the position opposite to the ejection hole 415. The locking block 416 can be inserted into the locking hole 7, so that the part of the double-layer insulation structure 4 inside the box 1 can be further positioned and the stability can be improved.

[0049] In summary, the entire enclosure 1 receives comprehensive insulation. The insulation is provided in three areas: the inner bottom, the outer bottom, and the side walls. These three insulation structures work together to form a cohesive whole, ensuring stability unaffected by external factors. In particular, the double-layer insulation structure 4, located on the outer side of the enclosure 1, connects to the bottom insulation box 3 via connectors 5, while its inner side is secured at two vertical points, significantly improving stability. Furthermore, the overall aesthetics of the insulation structure of the entire enclosure 1 are also ensured after assembly.

[0050] This application also discloses an installation method for a heat-insulating planting box for planting plants, including the following steps:

[0051] S1. Install the bottom insulation box 3 on the bottom outside the box body 1;

[0052] S2. Lay the bottom insulation layer 2 inside the bottom of the box 1. If necessary, apply glue to the bottom of the box 1 to bond the bottom insulation layer 2 to the bottom surface of the box 1.

[0053] S3. Complete the assembly process of the double-layer insulation structure 4 on the outside of the box 1. Specifically, insert the first insulation board 431 horizontally into the gap formed by the mounting plate 42, the upper baffle 411, and the lower baffle 422 until the first insulation board 431 is fully inserted. At this time, the connecting plate 433 is clamped between the upper baffle 411 and the lower baffle 422, and the second insulation board 432 is in contact with the corresponding surfaces of the upper baffle 411 and the lower baffle 422, so that the insulation board is installed and fixed.

[0054] S4. Slide the double-layer insulation structure 4 onto the side wall of the box 1 until the bottom of the mounting plate 42 located inside the box 1 contacts the bottom insulation layer 2 and the mounting plate 42 located outside the box 1 contacts the upper surface of the bottom insulation box 3, and the locking block 416 pops into the locking hole 7 to lock.

[0055] S5. Insert the movable insert 53 and the stationary insert 52 of the connector 5 into the corresponding socket 6, so that the bottom insulation box 3 and the double-layer insulation structure 4 are connected as one unit.

[0056] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A heat-insulating planting box for planting plants, comprising a box body (1), characterized in that: The bottom of the box (1) is covered with a bottom insulation layer (2). The side walls of the box (1) are equipped with a double-layer insulation structure (4). The double-layer insulation structure (4) includes a top horizontal plate (41) and two mounting plates (42). The top horizontal plate (41) is mounted on the top surface of the box (1). The two mounting plates (42) are parallel to each other and fixed to the top horizontal plate (41). The two mounting plates (42) are respectively located on the inner and outer sides of the box (1). The mounting plate (42) located on the outer side of the box (1) and the mounting plate (42) located on the inner side of the box (1) are both equipped with insulation panels (43) that are in contact with the inner surface of the box (1). The bottom of the box (1) is equipped with a bottom insulation box (3). The insulation box covers the box. The bottom of the body (1) is surrounded by the upper surface of the insulated box and is in contact with the bottom of the outer mounting plate (42). The insulated box and the outer mounting plate (42) are connected as one unit by a connector (5). The connector (5) includes a connector (51), which has a vertical receiving groove (511) inside. The side surface of the connector (51) facing the box (1) has a vertical sliding hole (513) communicating with the receiving groove (511). The cross-sectional dimension of the vertical sliding hole (513) is smaller than that of the receiving groove (511). A stationary insert (52) is fixedly installed at the bottom position of the connector (51) facing the box (1). A slider (512) is slidably installed in the receiving groove (511) along the vertical direction. A movable insert (53) is fixedly provided on the surface of the slider (512). The movable insert (53) slides in conjunction with the vertical sliding hole (513). A return spring (514) is provided in the receiving groove (511) with one end fixed to the bottom of the receiving groove (511) and the other end fixed to the slider (512). The outer mounting plate (42) and the bottom heat preservation box (3) are both provided with insertion holes (6) for the movable insert (53) and the stationary insert (52) to be inserted. The bottom of the two mounting plates (42) are both fixedly connected with horizontal extension plates (421). The ends of the two extension plates (421) that are close to each other are both fixed with vertical lower baffles (422). The lower surface of the top horizontal plate (41) is fixedly provided with a lower baffle. The upper baffle (411) is vertically opposite to the plate (422). The insulation board body (43) includes a first insulation board (431) and a second insulation board (432). The first insulation board (431) is inserted between the mounting plate (42) and the upper baffle (411) and the lower baffle (422). The second insulation board (432) is located on the side of the upper baffle (411) and the lower baffle (422) away from the mounting plate (42). The first insulation board (431) and the second insulation board (432) are connected and fixed by a connecting plate (433), and the second insulation board (432) is in contact with the surface of the box body (1). The first insulation board (431) is an acrylic insulation board. The second insulation board (432) is a perlite insulation board.

2. The heat-insulating planting box for planting plants according to claim 1, characterized in that: A vertical magnetic metal rod (21) is fixedly installed at the four edges of the upper surface of the bottom insulation layer (2). The bottom of the extension plate (421) is provided with a mating hole (4211) for inserting the magnetic metal rod (21). A ring magnet (4212) is installed on the inner wall of the mating hole (4211).

3. The heat-insulating planting box for planting plants according to claim 2, characterized in that: The top horizontal plate (41) has a vertical through groove (412) on one side near the inside of the box (1) that extends to the upper baffle (411). An adjusting rod (413) is installed in the through groove (412), and a horizontal pressure spring (414) is installed in the through groove (412). A pop-out hole (415) is opened on the side wall of the through groove (412) facing the inner wall of the box (1). A locking block (416) is fixedly connected to the end of the pressure spring (414). The locking block (416) and the pop-out hole (415) are slidably engaged. Locking holes (7) are opened at corresponding positions on the inner side wall of the box (1) and the first insulation plate (431). When the top mounting plate (42) contacts the top of the box (1), the locking hole (7) and the pop-out hole (415) are directly opposite each other.

4. The installation method of a heat-insulating planting box for planting plants according to any one of claims 1-3, characterized in that: The installation method includes the following steps: S1. Place the bottom insulation box (3) around the bottom of the box body (1); S2. Lay the bottom insulation layer (2) inside the bottom of the box (1); S3. Insert the first insulation board (431) horizontally into the gap formed by the mounting plate (42), the upper baffle (411), and the lower baffle (422) until the first insulation board (431) is fully inserted. At this time, the connecting plate (433) is located between the upper baffle (411) and the lower baffle (422), so that the insulation board body (43) is installed and fixed. S4. Slide the double-layer insulation structure (4) onto the side wall of the box (1) until the bottom of the mounting plate (42) located inside the box (1) contacts the bottom insulation layer (2) and the mounting plate (42) located outside the box (1) contacts the upper surface of the bottom insulation box (3). S5 inserts the movable insert (53) and the stationary insert (52) of the connector (5) into the corresponding socket (6), so that the bottom insulation box (3) and the double-layer insulation structure (4) are integrated.

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